Liu Quan's mind was thoughtful, and at the moment he explained his plan in detail, and when he heard the frequent nods of the Mongolian generals, Niu Ling immediately decided to act according to the plan. Niu Lu led 1,000 cavalry to Lingquan Mountain, Kudu led 500 cavalry to Jiantandu, and Liu Cheng led his new annexed army and 300 Mongolian cavalry to Qingshi County, more than 100 miles away, to build a pontoon bridge. The reason why Niu Xuan sent the Mongol cavalry to follow Liu Quan was to prevent Liu Quan from surrendering to the Song army or secretly fleeing alone, and on the other hand, to kill the people he encountered along the way to prevent his whereabouts from leaking.

According to Liu Quan's plan, the Mongol army should make a feint attack on both Jiantandu and Lingquan Mountain, and make a big show to attract the attention of the Thunderbolt army. When Niu Ling led his army to Lingquan Mountain, he saw that there were many people in the walled fort on the mountain, and he knew that it was difficult to attack it, so he ordered his men to wander around the vicinity day and night, and put a few arrows from a distance.

Yang Wen, who guarded Lingquan Mountain, was looking forward to the Mongol army to attack, although there were only more than 1,000 people in the village Banzhou Army and the new annexed army of the reform, but with the advantage of geographical advantages and firearms, and the help of artillery and warships, the Mongol army could definitely be defeated. Of course, although the Banzhou army was strong, it did not dare to go down the mountain to fight the Mongolian cavalry, and could only watch the Mongolian army wantonly provoke at the foot of the mountain.

The feints at Arrow Beach suffered a big loss. When he saw that the defense facilities of Jiantandu were only a few trenches and simple wooden fences, and the defenders were only a few dozen, he was immediately moved. It's just that he has already been beaten out of the psychological shadow by the artillery, and he is very hesitant in his heart for fear of some traps. His cavalry was chased by Cao Ergou during this time, and he had already nested a fire in his heart, and immediately a centurion asked for orders to go and take the arrow beach crossing, and kill all the defenders to vent his anger.

Fearful and hateful of the Thunderbolts, he could not withstand the prodding of his subordinates, so he immediately agreed to the centurion's request to go and raid the Arrow Beach. However, when this team of 100 people set off, he had a sense of foreboding in his heart, and hurriedly sent someone to recall it. Come to think of it, the Thunderbolts will definitely be heavily guarded at such an important crossing, but it may be in the shadows.

It's just that the cavalry is extremely fast, and before Kudu's order has arrived, the attacking hundred-man team has already launched a charge. Sure enough, before rushing to the wooden fence, a series of thunders sounded in the reeds in the river, and dozens of cannonballs flew with a scream. After the smoke of gunfire, the open space in front of the fence was filled with people and horses. As soon as Kudu counted the people who had fled, he found that more than 40 horsemen had been lost in this round of shelling.

Although the Mongol army lost dozens of cavalry because of the sudden advance, Liu Quan's plan was successful on the whole. Unlike the news that the Mongolian army went to Qingshi County to strictly seal the news, the Mongolian army of Jiantandu and Lingquan Mountain did not go all out to intercept and kill the reconnaissance cavalry of the Thunderbolt army, and the urgent military information that the two places were invaded by the Mongolian army was naturally transmitted to Cao Ergou, who followed the pursuit. Because his perception of the battlefield environment was far inferior to that of the Mongolian army, and Liu Cheng deliberately hid his whereabouts, Cao Ergou judged that General Niu Ling led the army to seize the Arrow Beach Ferry and advance eastward, and he did not notice the Mongolian army's plan of "repairing the plank road openly and secretly crossing Chencang".

Just when Cao Ergou hurriedly led his army to Jiantandu, Liu Cheng led his army to Qingshi County, which was hundreds of miles downstream. He marched and fought on Tongchuan Fu Road for many years, and was very familiar with the nearby terrain and landforms, and even led the army to cross the Qingshi Ferry in his early years. The bluestone ferry has a turbulent water flow and a small amount of traffic, so it is indeed not suitable to carry a large number of heavy troops through. However, Liu Cheng and Niu Lu had a total of less than 3,000 men, and they were all lightly armed troops, so although it was not easy to pass, it was feasible. It is now late October, and although the water volume of the Fujiang River is still abundant, it has subsided a lot compared to July and August, and it is not difficult to build a simple pontoon bridge.

If you want to say that Liu Quan's life should not be extinguished. Just as he was giving the order to cut down the trees, the accompanying Mongol scouts reported the exciting news that there were ships. There is a small river near the Qingshi ferry that flows into the Fujiang River, and there is a swamp covered with reeds more than ten miles upstream of the small river, which hides dozens of large and small boats. These boats were originally owned by a group of bandits, but when Wang Li escorted Yang Wen to the north, he exterminated this group of bandits, and the remaining bandits hid their boats in the swamp in the hope of making a comeback in the future.

Now that he had a boat, he could no longer build a pontoon bridge with great difficulty, and at that moment Liu Cheng ordered someone to sail the boat to the Qingshi Ferry, ordered his subordinates to start crossing the river first, and sent someone to inform Niu Ling to come quickly. At this time, Kipchak was leading the elite of the Mongolian army in the Marshal of Dongchuan to besiege Diaoyu City, and the Diaoyu City naval army operating in the water of the Fujiang River returned to help block the Mongolian army, and the warships of the Perak Army crossed the waters in Mianzhou, Tongchuan Mansion and Jiantan to prevent the attack of the Mongolian army.

Niu Xuan was overjoyed when he got the news of Liu Quan, and immediately joined forces with Kudu and hurried to Qingshidu. They were accompanied by more than fifty cavalrymen who had fled from Fushun City. After the Thunderbolt demolition boat blew up the pontoon bridge outside Fushun City, the 300 cavalry blocked on the west bank fled all the way north, burning and looting along the way, and were met with fierce resistance from the fortresses along the way and the Thunderbolt cavalry following and pursuit, leaving less than 100 people. Seeing that the Thunderbolt army was chasing and intercepting in all directions, the centurion who led the team decided to venture east to cross the Tuojiang River. When they floated in Neijiang County, they lost more than 20 people under the pursuit of the army, and when they joined the Kudu Department at Jiantandu, they only had more than 50 horsemen.

At this time, Cao Ergou had just arrived with his army, but he saw the Mongolian army of Jiantandu and Lingquan Mountain suddenly withdrawing, although he had doubts in his heart, he thought that it was Niu Ling who saw the strength of the Perak army and retreated. The Mongolian cavalry was extremely mobile, and if Niu Ling wanted to go, Cao Ergou couldn't stop it at all, so he had to lead the army to follow and pursue. Yang Bangxian, who accompanied him, led his 2,000 Banzhou troops to join Yang Wen and strengthen the defenses of Jiantandu and Lingquan Mountain in case the Mongol army of Marshal Dongchuan's Mansion attacked.

According to the battle plan of the General Staff, the Banzhou Army will join forces with the arriving Zhan Wanshou and go to Pengxi Village by land and water to help. As for Cao Ergou's department, the first task is to annihilate Niu Ling and Liu Quanbu. Ouyang Xuan specially wrote a letter to Cao Ergou to capture or kill Liu Quan as much as possible. After completing the task, wait for the opportunity to support Pengxi Village.

Jiantandu and Lingquan Mountain are only more than 100 miles away from Qingshidu, and the Mongolian cavalry arrived at Qingshidu in one day in a hurry to flee for their lives, and began to cross the river. There were also reconnaissance boats of the Thunderbolt army on the Fujiang River, and when they saw that the Mongolian cavalry bees were supporting the crossing, they hurried to Jiantan to report the news, but they were not happy to get up at all.

Cao Ergou, who learned the news, was shocked, and urgently ordered the whole army to speed up the pursuit, and then let the naval warship go to Qingshidu. It's just that it takes three days for the infantry to reach Qingshidu, and the naval warships are also a lot slower because of the drop in water level. Before Cao Ergou led the army to the halfway point, the scout cavalry reported that the Mongolian army had all crossed the river, and the ferries had been burned.

Cao Ergou learned the news that Niu Ling and Liu Quan had escaped across the river, so he had to return in a huff. The strength of the Mongolian army east of the Fujiang River was extremely strong, and there were even fortified cities such as Qingju City and Dahou City, and the two led the army to flee into it, and the Thunderbolt army was helpless. Although the 1st Division was not afraid of any strong enemy, the soldiers were already very tired from months of fighting, and the supply line was too long, so it was very easy for a lone army to be surrounded by the Mongol army. More importantly, the cavalry brigade of the first division was also besieged by Yang Dayuan in Pengxi Village, and he was anxious to go to Pao Ze to relieve the siege.